Mystery picture addition MYSTERY definition: 1. Mystery definition: anything that is kept secret or remains unexplained or unknown. mystery, problem, enigma, riddle, puzzle mean something which baffles or perplexes. Learn more. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. Mystery fiction Cover of the pulp mystery-fiction magazine Mystery (January 1934) Mystery is a fiction genre where the nature of an event, usually a murder or other crime, remains mysterious until the end of the story. While all these words mean "something which baffles or perplexes," mystery applies to what cannot be fully understood by reason or less strictly to whatever resists or defies explanation. The case was that of a murder. A turban and loincloth soaked in blood had been found; also a staff. mystery noun Anything that arouses curiosity or perplexes because it is unexplained, inexplicable, or secret: Nov 1, 2025 · mystery (countable and uncountable, plural mysteries) The truth behind the events remains a mystery. something strange or unknown that cannot be explained or understood: 2. something strange or not known that has not yet been explained or understood: 2. Some common synonyms of mystery are enigma, problem, puzzle, and riddle. a story, often about a…. See examples of MYSTERY used in a sentence. mystery, problem, enigma, riddle, puzzle mean something which baffles or perplexes. Definition of mystery noun in Oxford Advanced Learner's Dictionary. [1] Mystery novels are often called “whodunnits” because they turn the reader into a detective trying to figure out the who, what, when, and how of a particular crime. mystery applies to what cannot be fully understood by reason or less strictly to whatever resists or defies explanation. . It had an element of mystery about it, however, which was puzzling the authorities. a book, film….